Clematis lasianthaNutt.

Pipestem Clematis

WFO wfo-0000610181 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Clematis lasiantha, photographed by joergmlpts
fig. a joergmlpts, CC BY 4.0 / 2022-06-09 / obs. 204719591
Clematis lasiantha, photographed by Ashwin Srinivasan
fig. b Ashwin Srinivasan, CC BY 4.0 / obs. 204310574
Clematis lasiantha, photographed by Nicholas Wei
fig. c Nicholas Wei, CC BY-SA 4.0 / obs. 202009613
Clematis lasiantha, photographed by Dario Taraborelli
fig. d Dario Taraborelli, CC0 1.0 / obs. 193047205
Clematis lasiantha, photographed by rappman
fig. e rappman, CC BY 4.0 / obs. 198497996
Clematis lasiantha, photographed by George Williams
fig. f George Williams, CC BY 4.0 / obs. 191459385
Clematis lasiantha, photographed by James C. Davis
fig. g James C. Davis, CC BY-SA 4.0 / obs. 199819396
Clematis lasiantha, photographed by Tom and T Herman
fig. h Tom and T Herman, CC BY 4.0 / obs. 193446823

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 1,046 observations

Peak flowering in Apr, from 1,046 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 2 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Clematis lasiantha subsp. fallax Kuntze
  • Clematis lasiantha subsp. pseudoligusticifolia Kuntze

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.